Correlation of month and season of birth with height, weight and degree of obesity of rural Japanese children

Hisako Tanaka, Masako Sei, Tran Quang Binh, Hokuma Munakata, Kyoko Yuasa, Yutaka Nakahori

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Month and season of birth are thought to influence height, weight and degree of obesity in schoolchildren. A cross-sectional study was designed to measure the height and weight of all children aged 6-15 years attending primary and junior high schools in Tokushima Prefecture, Japan. Data were standardized (z -scores) and analysed separately by gender and age. The mean z-score for height and weight were the highest in subjects born during the months of spring and the lowest in those born during the months of winter (p <0.0001), whereas the means were significantly higher in children born during the months of summer than in those born during the months of autumn (p <0.0001). A gradually decreasing trend of height and weight was observed in children of both genders born between May and Mar (from spring to winter). There was no significant difference in degree of obesity among the four seasons of birth for boys and girls. The highest prevalence of obese boys have born during spring (among 6-year-old boys) and summer (among 7-year-old boys), whereas the highest prevalence of obese girls have born during spring (among 6-year-old girls) and winter (among 10-year-old girls). Our findings suggest that month and season of birth influence height and weight of schoolchildren in Tokushima but not their degree of obesity.

Original languageEnglish
Pages (from-to)133-139
Number of pages7
JournalJournal of Medical Investigation
Volume54
Issue number1-2
DOIs
Publication statusPublished - Feb 2007
Externally publishedYes

Fingerprint

Obesity
Parturition
Weights and Measures
Mars
Japan
Cross-Sectional Studies

Keywords

  • Degree of obesity
  • Height
  • Month of birth
  • Schoolchildren
  • Weight

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Correlation of month and season of birth with height, weight and degree of obesity of rural Japanese children. / Tanaka, Hisako; Sei, Masako; Binh, Tran Quang; Munakata, Hokuma; Yuasa, Kyoko; Nakahori, Yutaka.

In: Journal of Medical Investigation, Vol. 54, No. 1-2, 02.2007, p. 133-139.

Research output: Contribution to journalArticle

Tanaka, Hisako ; Sei, Masako ; Binh, Tran Quang ; Munakata, Hokuma ; Yuasa, Kyoko ; Nakahori, Yutaka. / Correlation of month and season of birth with height, weight and degree of obesity of rural Japanese children. In: Journal of Medical Investigation. 2007 ; Vol. 54, No. 1-2. pp. 133-139.
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